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5e80555c9b
Previously it was part of swiftBasic. The demangler library does not depend on llvm (except some header-only utilities like StringRef). Putting it into its own library makes sure that no llvm stuff will be linked into clients which use the demangler library. This change also contains other refactoring, like moving demangler code into different files. This makes it easier to remove the old demangler from the runtime library when we switch to the new symbol mangling. Also in this commit: remove some unused API functions from the demangler Context. fixes rdar://problem/30503344
69 lines
2.7 KiB
C++
69 lines
2.7 KiB
C++
//===--- SwiftDemangle.cpp - Public demangling interface ------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// Functions in the libswiftDemangle library, which provides external
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// access to Swift's demangler.
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//
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//===----------------------------------------------------------------------===//
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#include "swift/Demangling/Demangle.h"
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#include "swift/SwiftDemangle/SwiftDemangle.h"
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static size_t swift_demangle_getDemangledName_Options(const char *MangledName,
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char *OutputBuffer, size_t Length,
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swift::Demangle::DemangleOptions DemangleOptions) {
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assert(MangledName != nullptr && "null input");
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assert(OutputBuffer != nullptr || Length == 0);
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if (!swift::Demangle::isSwiftSymbol(MangledName))
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return 0; // Not a mangled name
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std::string Result = swift::Demangle::demangleSymbolAsString(
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llvm::StringRef(MangledName), DemangleOptions);
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if (Result == MangledName)
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return 0; // Not a mangled name
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// Copy the result to an output buffer.
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return strlcpy(OutputBuffer, Result.c_str(), Length);
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}
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size_t swift_demangle_getDemangledName(const char *MangledName,
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char *OutputBuffer,
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size_t Length) {
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swift::Demangle::DemangleOptions DemangleOptions;
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DemangleOptions.SynthesizeSugarOnTypes = true;
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return swift_demangle_getDemangledName_Options(MangledName, OutputBuffer,
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Length, DemangleOptions);
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}
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size_t swift_demangle_getSimplifiedDemangledName(const char *MangledName,
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char *OutputBuffer,
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size_t Length) {
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auto Opts = swift::Demangle::DemangleOptions::SimplifiedUIDemangleOptions();
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return swift_demangle_getDemangledName_Options(MangledName, OutputBuffer,
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Length, Opts);
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}
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int swift_demangle_hasSwiftCallingConvention(const char *MangledName) {
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swift::Demangle::Context DCtx;
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if (DCtx.hasSwiftCallingConvention(llvm::StringRef(MangledName)))
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return 1;
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return 0;
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}
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size_t fnd_get_demangled_name(const char *MangledName, char *OutputBuffer,
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size_t Length) {
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return swift_demangle_getDemangledName(MangledName, OutputBuffer, Length);
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}
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